I am getting more concerned that going with these risers will be a problem without some sort of gasket. I will likely start my search tomorrow for 4.5 to 5.5" riser with round base. I stopped at 2 bike mechanics yesterday. I think we all agree the brake line, brake cable, throttle,idle and clutch cable need to be changed with an increase of 2 to 3 inches. One mechanic suggested running the cables behind the fork. Never going back to him. At this point, I don't know if I should go with +2 or +4.
Thank you for all your advice